config/kernel-totalram-pages-func.m4

   1 dnl #
   2 dnl # Linux 5.0: totalram_pages is no longer a global variable, and must be
   3 dnl # read via the totalram_pages() helper function.
   4 dnl #
   5 AC_DEFUN([ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC], [
   6         AC_MSG_CHECKING([whether totalram_pages() exists])
   7         ZFS_LINUX_TRY_COMPILE([
   8                 #include <linux/mm.h>
   9         ],[
  10                 unsigned long pages __attribute__ ((unused));
  11                 pages = totalram_pages();
  12         ],[
  13                 AC_MSG_RESULT(yes)
  14                 AC_DEFINE(HAVE_TOTALRAM_PAGES_FUNC, 1, [kernel has totalram_pages()])
  15         ],[
  16                 AC_MSG_RESULT(no)
  17         ])
  18 ])